Yet another stab at the one ring :) There are some nice version to be found, but I wanted to get the text as large as possible so decided to make my own.
note For some reason the preview pics aren't showing for me, if you have the same problem please scroll down for a couple of pics, thx.
Elegoo Standard + 15% monocure flex 405um UV resin
Solid (100%) - "None" in ChiTuBox settings
There are two versions, one with a small riser underneath and one without, The one with the riser is designed to print without supports flat on the build plate onSLA/DLP printers. The riser is designed to compensate for the Z-axis compression that occurs with some DLP printers in the bottom layers, and is intended to be sanded off post print.
The version without a riser can be printed with or without supports, depending on the characteristics of your printer.
The STL files with 3 rings are in these sizes:
mm int dia. ......UK........US
19.24.............S 1/4.......9 1/4
The single ones are the middle size. If you wish to rescale, I'd recommend just rescaling in the X & Y axes, to stop the lettering getting distorted. If you know what ring size you'd like, then this page is useful, as it has a table showing all the sizes in various formats: http://www.ringsizes.co/
After printing, I spray primed white, then sprayed with an "old gold" rattle can from my local craft store, then ran red ink into the lettering, wiped off the residue and then applied a little antique gold rub n buff, left it to dry for 24hrs and sprayed with clear gloss varnish.
Ring after finishing as described above.
Rings printed with supports
Designed using Windows 10 3D Builder app. The text was created from a scan of the illustration found in the original LOTR book, then the first line applied around the outside using the emboss function with a cylindrical projection.
The interior lettering is slightly more difficult, as you cannot emboss directly on the interior with 3D Builder, so I flipped the text horizontally, applied it to a cylinder the same size as the interior of the ring, and extruded it outwards, then subtracted it from the ring (see pics).
Cutter prepped, just needs to be moved down.
Now in place, now we will subtract...
And done :)